CN107525571A - A kind of automobile intelligent overload detection system - Google Patents
A kind of automobile intelligent overload detection system Download PDFInfo
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- CN107525571A CN107525571A CN201710792743.0A CN201710792743A CN107525571A CN 107525571 A CN107525571 A CN 107525571A CN 201710792743 A CN201710792743 A CN 201710792743A CN 107525571 A CN107525571 A CN 107525571A
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- circuit
- chip microcomputer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K28/00—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions
- B60K28/08—Safety devices for propulsion-unit control, specially adapted for, or arranged in, vehicles, e.g. preventing fuel supply or ignition in the event of potentially dangerous conditions responsive to conditions relating to the cargo, e.g. overload
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q9/00—Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00, e.g. haptic signalling
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/08—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles
- G01G19/12—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for incorporation in vehicles having electrical weight-sensitive devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Alarm Devices (AREA)
Abstract
The present invention relates to a kind of automobile intelligent overload detection system.The direction discernment circuit of intelligent passenger carriage overloading detecting system, Bus- Speed Monitoring circuit, weight detecting circuit, the output end of infrared circuit are connected to the input of single-chip microcomputer;The output end of Vehicular accumulator cell is connected to the input of single-chip microcomputer;The output end of single-chip microcomputer is connected to the input of warning circuit;The output end of single-chip microcomputer is connected to the input of relay circuit;The output end of single-chip microcomputer is connected to the input of automotive locking executing agency;The output end of single-chip microcomputer is connected to the input of display circuit.A kind of intelligent passenger carriage overloading detecting system of the present invention, the personnel that get on or off the bus are detected by photoelectric sensor, enter administrative staff's counting, when getting on the bus, the weight of weight detecting electric circuit inspection passenger on pedal, the statistics of passenger gross weight is carried out, prevents from overloading, the safe speed of foundation vehicle crew's numerical control vehicle operation.
Description
Technical field
The invention mainly relates to overload detection field, more specifically to a kind of automobile intelligent overload detection system.
Background technology
With the continuous development of society, the movement of population of various regions is also more and more frequent, but many places are due to supervision
It is ineffective, cause overcrowding phenomenon to occur again and again.This harmful competition that not only result in transport market has a strong impact on transportation enviromnent.
Meanwhile the life-span overloaded to automobile in itself, there is sizable harm to traffic safety and cost of transportation and accounting.
The content of the invention
The present invention solves the technical problem of a kind of automobile intelligent overload detection system is provided, pass through photoelectric sensor
Detection is got on or off the bus personnel, enters administrative staff's counting, when getting on the bus, weight detecting electric circuit inspection passenger on pedal
Weight, the statistics of passenger gross weight is carried out, prevents from overloading, the safe speed of foundation vehicle crew's numerical control vehicle operation.
In order to solve the above technical problems, a kind of automobile intelligent overload detection system of the present invention, including direction discernment circuit, car
Speed detection circuit, weight detecting circuit, infrared circuit, Vehicular accumulator cell, single-chip microcomputer, warning circuit, relay circuit, vapour
Lock determines executing agency, display circuit, and the personnel that get on or off the bus are detected by photoelectric sensor, enters administrative staff's counting, when getting on the bus, peace
The weight of weight detecting electric circuit inspection passenger on pedal, the statistics of passenger gross weight is carried out, prevents from overloading,
The safe speed of foundation vehicle crew's numerical control vehicle operation.
Wherein, the output end of the direction discernment circuit is connected to the input of single-chip microcomputer;The Bus- Speed Monitoring circuit
Output end is connected to the input of single-chip microcomputer;The output end of the weight detecting circuit is connected to the input of single-chip microcomputer;It is described
The output end of infrared circuit is connected to the input of single-chip microcomputer;The output end of the Vehicular accumulator cell is connected to single-chip microcomputer
Input;The output end of the single-chip microcomputer is connected to the input of warning circuit;The output end of the single-chip microcomputer is connected to relay
The input of device circuit;The output end of the single-chip microcomputer is connected to the input of automotive locking executing agency;The single-chip microcomputer
Output end is connected to the input of display circuit.
As the further optimization of the present invention, a kind of automobile intelligent overload detection system of the present invention, the single-chip microcomputer uses
AT89C51 single-chip microcomputers.
As the further optimization of the present invention, a kind of automobile intelligent overload detection system of the present invention, the weight detecting electricity
Road uses resistance strain gage weighing sensor, rated load 200kg.
As the further optimization of the present invention, a kind of automobile intelligent overload detection system of the present invention, the Bus- Speed Monitoring mould
Block uses VB-Z9200 magnetoelectric sensors.
As the further optimization of the present invention, a kind of automobile intelligent overload detection system of the present invention, the direction discernment electricity
Road uses two groups of E18-D80NK photoelectric sensors.
As the further optimization of the present invention, a kind of automobile intelligent overload detection system of the present invention, the infrared detection electricity
Road uses BIS0001 Thermoelectric Infrared Sensors.
As the further optimization of the present invention, a kind of automobile intelligent overload detection system of the present invention, the display circuit is adopted
With LCD1602 LCDs.
Beneficial effect:A kind of automobile intelligent overload detection system of the present invention, the personnel that get on or off the bus are detected by photoelectric sensor,
Enter administrative staff's counting, when getting on the bus, the weight of the weight detecting electric circuit inspection passenger on pedal, carry out rider
The statistics of member's gross weight, prevents from overloading, the safe speed of foundation vehicle crew's numerical control vehicle operation.
Brief description of the drawings
The present invention will be further described in detail with specific implementation method below in conjunction with the accompanying drawings.
Fig. 1 is a kind of hardware structure diagram of automobile intelligent overload detection system of the present invention.
Fig. 2 is a kind of circuit diagram of the single-chip microcomputer of automobile intelligent overload detection system of the present invention.
Fig. 3 is a kind of circuit diagram of the direction discernment circuit of automobile intelligent overload detection system of the present invention.
Fig. 4 is a kind of circuit diagram of the weight detecting circuit of automobile intelligent overload detection system of the present invention.
Fig. 5 is a kind of circuit diagram of the warning circuit of automobile intelligent overload detection system of the present invention.
Fig. 6 is a kind of circuit diagram of the Vehicular accumulator cell of automobile intelligent overload detection system of the present invention.
Fig. 7 is a kind of circuit diagram of the Bus- Speed Monitoring circuit of automobile intelligent overload detection system of the present invention.
Fig. 8 is a kind of circuit diagram of the display circuit of automobile intelligent overload detection system of the present invention.
Fig. 9 is a kind of circuit diagram of the relay circuit of automobile intelligent overload detection system of the present invention.
Figure 10 is the circuit diagram that a kind of automotive locking of automobile intelligent overload detection system of the present invention performs structure.
Figure 11 is a kind of circuit diagram of the infrared circuit of automobile intelligent overload detection system of the present invention.
Embodiment
Embodiment one:
Illustrate present embodiment, a kind of automobile intelligence described in present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11
Energy overload detection system includes direction discernment circuit, Bus- Speed Monitoring circuit, weight detecting circuit, infrared circuit, vehicle-mounted storage
Battery, single-chip microcomputer, warning circuit, relay circuit, automotive locking executing agency, display circuit, are detected by photoelectric sensor
Get on or off the bus personnel, enters administrative staff's counting, when getting on the bus, the weight of the weight detecting electric circuit inspection passenger on pedal
Amount, the statistics of passenger gross weight is carried out, prevents from overloading, the safe speed of foundation vehicle crew's numerical control vehicle operation.
Wherein, the output end of the direction discernment circuit is connected to the input of single-chip microcomputer, and direction discernment circuit uses two
Group E18-D80NK photoelectric sensors, the appropriate location (weighing sensor is positioned between the two) at passenger door, according to
Passenger blocks the different sequential for the infrared ray that two infrared ray transmitter and receivers are sent to pipe when passing through car door, U2A, U2B, U2C,
U2D is the amplification filtering part circuit of the anti-phase inverting amplifier CD4069 compositions of six integrated with CMOS, and U1 is that CD4013 is formed
CMOS double D triggers, U3A, U3B are the input of CD4081 tetra- 2 and door, the two-way sensor inspection of this two parts NAND gate output
Survey signal and carry out logical operation, finally export suitable level signal in U3A, U3B output end BD1, BD2, deliver to list respectively
P1.0, P1.1 pin of piece machine.
The output end of the Bus- Speed Monitoring circuit is connected to the input of single-chip microcomputer, and Bus- Speed Monitoring module uses VB-Z9200
Magnetoelectric sensor, pass through the continuous change of pinion rotation and the extreme axle relative position of sensor, sensor sensing coil week
The magnetic field enclosed produces strong and weak alternately change therewith, and alternating electromotive force, the frequency of induced electromotive force can be induced in induction coil
It is directly proportional to the number of teeth and rotating speed of gear ring, so as to calculate speed, speed is sent to control module by AD0, AD1
P1.2, P1.3 pin are connected.
The output end of the weight detecting circuit is connected to the input of single-chip microcomputer, and weight detecting circuit uses resistance-strain
Piece weighing sensor, rated load 200kg, it is full-bridge circuit used by sensor circuit, there are four resistance strain gages, electricity
Resistance strain pressure transducer is mainly made up of elastomer, resistance strain gage cable etc., and internal wiring uses Huygens's electric bridge,
When elastomer bear load produce deformation when, resistance strain gage (conversion element) be stretched or compression strain piece deformation after, it
Resistance will change (increase or reduce) so that electric bridge disequilibrium, produces corresponding differential wave, for subsequent conditioning circuit
Measurement and processing.Differential wave caused by sensor circuit is fainter, it is necessary to be put faint signal by amplifier
Single-chip microcomputer is sent to after big to be handled, the OUT pins of weight detecting circuit are connected with the P1.4 pins of single-chip microcomputer.
The output end of the infrared circuit is connected to the input of single-chip microcomputer, and infrared circuit, which is used to detect, to be driven
Whether member is in place, and infrared circuit uses BIS0001 Thermoelectric Infrared Sensors, and pyroelectric infrared sensor passes through target
Target is detected with the temperature difference of background, using pyroelectric effect, electrode is set on the upper and lower surface of the crystalloid of barium titanate one,
Upper surface is coated with black film, if there is infrared ray intermittently to irradiate, its surface temperature rises △ T, the atomic arrangement of its crystals
Change will be produced, causes spontaneous polarisation charge, voltage △ U are produced between upper/lower electrode, it is electric according to being produced between upper/lower electrode
Pressure difference determines that sensor detects infrared signal.When detecting infrared signal on car driver seat, single-chip microcomputer controls automotive lock
Determine executing agency's unlocking electronic lock, open the car door of car, it is low that infrared circuit detects that infrared signal exports from OUT1 mouths
P1.5 pin of the level signal to single-chip microcomputer.
The output end of the Vehicular accumulator cell is connected to the input of single-chip microcomputer, and Vehicular accumulator cell uses vehicular power-bottle, car
It is a kind of battery to carry battery, is directly supplied by Vehicular accumulator cell from VCC mouths to intelligent passenger carriage overloading detecting system
Electricity.
The output end of the single-chip microcomputer is connected to the input of warning circuit, and warning circuit uses alarm bell and LM386 chips,
After single-chip microcomputer output signal is amplified by LM386 chips, after rear output control loudspeaker carries out sounding after filtering, alarm
Module is connected to the P0.6 pins of wireless senser II with control module by AD2.
The output end of the single-chip microcomputer is connected to the input of relay circuit, and the relay that relay circuit uses is five
Pin, operating voltage are+5V DC voltages, and the output of relay normally open contact terminates red light emitting diodes.Light emitting diode is
For identifying light indication signal that whether relay acts, the red diode when relay internal switch adhesive to normally-closed contact
Do not light, represent that the starter of car can be with normal operation;Acted, made interior by single-chip microcomputer control relay when passenger carriage overloading
Portion's switch is placed in normally opened contact, and now red light emitting diodes are bright, and red light emitting diodes, which are lighted, represents that car has been locked
Can not normal operation, the P0.0 ports of single-chip microcomputer output a control signal to the OUTA mouths of relay circuit.
The output end of the single-chip microcomputer is connected to the input of automotive locking executing agency, and automotive locking executing agency uses
LY2NJ miniature relays, intelligent passenger carriage overloading detecting system control the folding of car door using electronic lock, and electronic lock needs monolithic
Machine output signal passes through the open and close of Control electronic lock, the I/O ends of automotive locking executing agency and access control
The P0.2 pins of device are connected.
The output end of the single-chip microcomputer is connected to the input of display circuit, and display circuit shows the speed detected, visitor
In-car number and the gross weight of occupant, display circuit use LCD1602 LCDs, the data terminal of display circuit
P2.0, P2.1 of DB0, DB1, DB2, DB3, DB4, DB5, DB6, DB7 and single-chip microcomputer, P2.2, P2.3, P2.4, P2.5, P2.6,
P2.7 pins are connected, for display data;(RS is register selection, and selection data are posted during high level 1 at the RS ends of display circuit
Selection instruction register when storage, low level 0) it is connected with the P3.5 pins of single-chip microcomputer, for control data order;Display electricity
RW ends when low level 0 (RW is reading writing signal line, carries out read operation during high level 1, carry out write operation) and the single-chip microcomputer on road
P3.6 pins are connected, for controlling read-write operation;The Enable Pin E (E ends are Enable Pin) of the display circuit and P3.7 of single-chip microcomputer
Pin is connected;P3.5, P3.6, P3.7 pin of single-chip microcomputer are used for the strobe state for controlling the charactron in display module.
Embodiment two:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11, the single-chip microcomputer uses AT89C51 monolithics
Machine.The AT89C51 single-chip microcomputers have the step-by-step operation system of complete set, ram in slice area from its internal hardware to software
Between also especially open the address section of a dual-use function, 16 bytes, element address 20H~2FH, it can both make byte
Processing, can also make position processing.The setting and use of the I/O pin of 51 single-chip microcomputers are very simple, when the pin makees input pin in use, only
The pin must be arranged to high level (during reset, each I/O mouths put high electricity).When the pin makees output pin in use, being then high level
Or low level.
Embodiment three:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11, weight detecting circuit uses resistance-strain
Piece weighing sensor, rated load 200kg.Resistance strain type pressure sensor is mainly by elastomer, resistance strain gage cable
Line forms, and internal wiring uses Huygens's electric bridge, when elastomer, which bears load, to be deformed, resistance strain gage (conversion element)
Be stretched or the deformation of compression strain piece after, its resistance will change (increase or reduce) so that electric bridge disequilibrium,
Corresponding differential wave is produced, measures and handles for subsequent conditioning circuit.
Embodiment four:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11, the Bus- Speed Monitoring module uses VB-
Z9200 magnetoelectric sensors.VB-Z9200 magnetoelectric tachometric transducers are the power generation type sensors for being directed to measure speed gearses and designing,
Magnetic gap change caused by measure speed gearses rotation, induced potential is produced in probe coil to reach the purpose that tests the speed.It is arranged close to
The place of measure speed gearses, the output frequency signal directly proportional to the rotating speed of rotating machinery.It need not power, and have output signal
Greatly, antijamming capability strengthens, the features such as being used in the adverse circumstances such as smog, oil gas, water smoke.Magnetoelectric sensor is to utilize
Electromagnetic induction principle work, i.e.,:When the magnetic flux in closed-loop path changes, induced electromotive force is just produced in loop,
Its size is relevant with the rate of change of magnetic flux.Magnetoelectric transducer changes induced electromotive force by way of changing magnetic resistance.Magneto-electric
Sensor is typically made up of sensing head and gear ring, and sensing head is mainly made up of permanent magnet, magnetic pole and induction coil.When gear ring
When backlash is relative with the pole axis end of sensor, the air gap between pole axis end and gear ring is maximum, and magnetic resistance is also maximum, passes through
The magnetic flux of induction coil is minimum.And when the tooth top of gear ring and the corresponding pole axis end of sensor, pole axis end and gear ring
Between the air gap it is minimum, magnetic resistance is also minimum, and the magnetic flux for passing through induction coil is maximum.When gear ring is in company with vehicle wheel rotation,
Just alternately with relative at the top of sensor pole axis, the magnetic field around sensor sensing coil occurs the tooth top and backlash of gear ring therewith
Power alternately changes, and alternating electromotive force will be induced in induction coil, its frequency is directly proportional to the number of teeth and rotating speed of gear ring.
Magneto-electric type wheel speed sensor is simple in construction, cost is low, stable and reliable in work, hardly by the shadow of the environmental factors such as temperature, dust
Ring.
Embodiment five:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11, the direction discernment circuit uses two groups
E18-D80NK photoelectric sensors.E18-D80NK photoelectric sensors are that a kind of collection is launched and is received in integral photoelectric sensor,
Detecting distance can be adjusted as requested.The sensor have detection range it is remote, by visible ray disturb it is small, cheap,
The features such as being easily assembled, be easy to use, it can be widely applied to robot obstacle-avoiding, numerous automated productions such as streamline is reckoned by the piece.
Embodiment six:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11, the infrared circuit uses
BIS0001 Thermoelectric Infrared Sensors.BIS0001 pyroelectric infrared sensors are a sensor letters with superior performance
Number processing integrated circuit.It is red that it is equipped with the pyroelectricity that pyroelectric infrared sensor and a small amount of extraneous component just may make up passive type
External switch, alarm human body heat-releasing electric transducer etc..It can quickly open all kinds of incandescent lamps, fluorescent lamp, buzzer, automatic automatically
The devices such as door, electric fan, dryer and automatic hand washing sink, passageway especially suitable for enterprise, hotel, market, storehouse and family,
The sensitizing ranges such as corridor, or the automatic light for safety zone, illumination and warning system.BIS0001 rpyroelectric infrareds sense
Utensil has numerical model analysis, independent high input impedance operational amplifier, two-way amplitude discriminator effectively to suppress interference, interior when setting delay
Between timer and blocking time timer, the features such as being encapsulated using 16 pin DIP.
Embodiment seven:
Illustrate present embodiment with reference to Fig. 1,2,3,4,5,6,7,8,9,10,11, the display circuit uses LCD1602 liquid
Crystal display screen.LCD1602 is also 1602 character mode lcd screens, and it is a kind of point for being specifically used to show letter, numeral, symbol etc.
Type liquid crystal module.It is made up of several 5 × 7 or 5 × 11 grade dot character positions, and each dot character position can be shown
One character, have between every a point away from interval, also have interval between often going, serve the work of character pitch and line space
With Just because of this so it can not show figure well.LCD1602 display screens refer to that the content of display is 16 × 2, you can
To show two rows, every 16 character liquid crystal modules of row.
A kind of operation principle of automobile intelligent overload detection system of the present invention is:A kind of intelligent passenger carriage overloading inspection of the present invention
Examining system is detected on driver seat by infrared circuit, and whether driver is in place, and when driver sits on the seat, infrared detection is electric
Road detects infrared signal, and single-chip microcomputer controls the actuating of relay of automotive locking executing agency, controls the car door opening of car.When
Passenger enters into car pedal, the weight of the weight detecting electric circuit inspection passenger on pedal, according to the direction discernment electricity around pedal
The sequential on road, calculate passenger and get on the bus or get off, counter is carried out plus counted or subtracts counting.Counter inside single-chip microcomputer
The quantity of statistics shows on display module, speed when Bus- Speed Monitoring electric circuit inspection vehicle is run, according in vehicle
Number calculates safe speed, and when automobile exceedes safe speed, the relay circuit control automotive interior actuating of relay, automobile enters
Row braking, when automobile exceedes safe speed or overload of vehicle, warning circuit carries out warning reminding.
Although the present invention is disclosed as above with preferred embodiment, it is not limited to the present invention, any to be familiar with this
The people of technology, without departing from the spirit and scope of the present invention, various changes and modification, therefore the protection of the present invention can be done
What scope should be defined by claims is defined.
Claims (7)
1. a kind of automobile intelligent overload detection system, it is characterised in that the intelligent passenger carriage overloading detecting system includes direction
Identification circuit, Bus- Speed Monitoring circuit, weight detecting circuit, infrared circuit, Vehicular accumulator cell, single-chip microcomputer, warning circuit, after
Appliance circuit, automotive locking executing agency, display circuit, the output end of the direction discernment circuit are connected to the input of single-chip microcomputer
End;The output end of the Bus- Speed Monitoring circuit is connected to the input of single-chip microcomputer;The output end connection of the weight detecting circuit
The input of single-chip microcomputer;The output end of the infrared circuit is connected to the input of single-chip microcomputer;The Vehicular accumulator cell
Output end be connected to the input of single-chip microcomputer;The output end of the single-chip microcomputer is connected to the input of warning circuit;The list
The output end of piece machine is connected to the input of relay circuit;The output end of the single-chip microcomputer is connected to automotive locking executing agency
Input;The output end of the single-chip microcomputer is connected to the input of display circuit.
A kind of 2. automobile intelligent overload detection system according to claim 1, it is characterised in that:The single-chip microcomputer uses
AT89C51 single-chip microcomputers.
A kind of 3. automobile intelligent overload detection system according to claim 1, it is characterised in that:The weight detecting circuit
Using resistance strain gage weighing sensor, rated load 200kg.
A kind of 4. automobile intelligent overload detection system according to claim 1, it is characterised in that:The Bus- Speed Monitoring module
Using VB-Z9200 magnetoelectric sensors.
A kind of 5. automobile intelligent overload detection system according to claim 1, it is characterised in that:The direction discernment circuit
Using two groups of E18-D80NK photoelectric sensors.
A kind of 6. automobile intelligent overload detection system according to claim 1, it is characterised in that:The infrared circuit
Using BIS0001 Thermoelectric Infrared Sensors.
A kind of 7. automobile intelligent overload detection system according to claim 1, it is characterised in that:The display circuit uses
LCD1602 LCDs.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108871533A (en) * | 2018-08-13 | 2018-11-23 | 安徽安凯汽车股份有限公司 | A kind of carload number detection method and system |
CN110260810A (en) * | 2018-03-12 | 2019-09-20 | 深圳鼎然信息科技有限公司 | The vehicles, which multiply, carries demographic method, device, equipment and medium |
CN112686082A (en) * | 2019-10-18 | 2021-04-20 | 北京华航无线电测量研究所 | System for counting number of people in vehicle based on visible light polarization |
-
2017
- 2017-09-05 CN CN201710792743.0A patent/CN107525571A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110260810A (en) * | 2018-03-12 | 2019-09-20 | 深圳鼎然信息科技有限公司 | The vehicles, which multiply, carries demographic method, device, equipment and medium |
CN108871533A (en) * | 2018-08-13 | 2018-11-23 | 安徽安凯汽车股份有限公司 | A kind of carload number detection method and system |
CN112686082A (en) * | 2019-10-18 | 2021-04-20 | 北京华航无线电测量研究所 | System for counting number of people in vehicle based on visible light polarization |
CN112686082B (en) * | 2019-10-18 | 2023-07-14 | 北京华航无线电测量研究所 | In-vehicle people counting system based on visible light polarization |
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